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A single-blind, controlled and randomised clinical trial to evaluate the effect of acupuncture in the treatment of trapezio-metacarpal osteoarthritis
Dickens W, Lewith GT
Complementary Medical Research 1989 Spring;3(2):5-8
clinical trial
6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

A single-blind, controlled, randomised trial was undertaken to evaluate the effect of acupuncture on trapezio-metacarpal (TMC) joint osteoarthritis (OA). Patients were randomised to treatment (acupuncture) or placebo (mock TNS) group and received 6 sessions of either procedure over a two week period. Assessments were undertaken blind to treatment: (i) at recruitment, (ii) after treatment and (iii) during follow-up. This study was undertaken in partial fulfilment of the requirements for Masters degree for which 5 months were available for data collection. Despite undertaking a 2 centre trial, only 12 patients completed the full course thus reducing its statistical power. Indeed the acupuncture group gained a 76.01% pain reduction and the mock TNS group 20%; but this difference was only statistically significant within and not between groups. However the trial provides further validation of the acupuncture versus mock TNS study model as an effective method of evaluating acupuncture in a controlled manner.

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